Zone mixer-amplifier with 6 x 40W class D power section for 100V or 4/8 Ohms speakers. Each zone can be monitored from the front panel via a headphone output with volume control. 3 mic/line inputs, 1 aux input and an integral USB/SD/FM player with Bluetooth receiver can be matrix switched to any of the 6 zones independently. Mic 1 channel has a variable override and each microphone input has switchable phantom power. A master chime with volume can be used for paging calls and alerts. Designed for multi-room systems requiring different audio sources.